How are these numbers calculated?

Big Games

How we did last week and who we should root for this week.   Explain

Week of 11/15100.0*Average seed
Jordan 110 Clen 93.5 +0.5
Alex 113.5 Dan 104 +0.1
PJ 100.5 Beano 90 +0.0
Week of 11/22100.0*Average seed
PJ 77.5 Dan 106.5 -0.3
Jordan 138 MikeBorr 159.5 -0.1
Week of 11/29100.0*Average seed
Nick 118 Jordan 119 +0.5
Beano 90.5 Dan 113 -0.2
Games Above .500
Chance Will Make Playoffs